Can a drug like Ozempic help treat addictions to alcohol, opioids or other substances?
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Semaglutide (sold as Ozempic, Wegovy and Rybelsus) was initially developed to treat diabetes. It works by stimulating the production of insulin to keep blood sugar levels in check.
This type of drug is increasingly being prescribed for weight loss, despite the fact it was initially approved for another purpose. Recently, there has been growing interest in another possible use: to treat addiction.
Anecdotal reports from patients taking semaglutide for weight loss suggest it reduces their appetite and craving for food, but surprisingly, it also may reduce their desire to drink alcohol, smoke cigarettes or take other drugs.
But does the research evidence back this up?
Animal studies show positive results
Semaglutide works on glucagon-like peptide-1 receptors and is known as a “GLP-1 agonist”.
Animal studies in rodents and monkeys have been overwhelmingly positive. Studies suggest GLP-1 agonists can reduce drug consumption and the rewarding value of drugs, including alcohol, nicotine, cocaine and opioids.
Out team has reviewed the evidence and found more than 30 different pre-clinical studies have been conducted. The majority show positive results in reducing drug and alcohol consumption or cravings. More than half of these studies focus specifically on alcohol use.
However, translating research evidence from animal models to people living with addiction is challenging. Although these results are promising, it’s still too early to tell if it will be safe and effective in humans with alcohol use disorder, nicotine addiction or another drug dependence.
What about research in humans?
Research findings are mixed in human studies.
Only one large randomised controlled trial has been conducted so far on alcohol. This study of 127 people found no difference between exenatide (a GLP-1 agonist) and placebo (a sham treatment) in reducing alcohol use or heavy drinking over 26 weeks.
In fact, everyone in the study reduced their drinking, both people on active medication and in the placebo group.
However, the authors conducted further analyses to examine changes in drinking in relation to weight. They found there was a reduction in drinking for people who had both alcohol use problems and obesity.
For people who started at a normal weight (BMI less than 30), despite initial reductions in drinking, they observed a rebound increase in levels of heavy drinking after four weeks of medication, with an overall increase in heavy drinking days relative to those who took the placebo.
There were no differences between groups for other measures of drinking, such as cravings.
In another 12-week trial, researchers found the GLP-1 agonist dulaglutide did not help to reduce smoking.
However, people receiving GLP-1 agonist dulaglutide drank 29% less alcohol than those on the placebo. Over 90% of people in this study also had obesity.
Smaller studies have looked at GLP-1 agonists short-term for cocaine and opioids, with mixed results.
There are currently many other clinical studies of GLP-1 agonists and alcohol and other addictive disorders underway.
While we await findings from bigger studies, it’s difficult to interpret the conflicting results. These differences in treatment response may come from individual differences that affect addiction, including physical and mental health problems.
Larger studies in broader populations of people will tell us more about whether GLP-1 agonists will work for addiction, and if so, for whom.
How might these drugs work for addiction?
The exact way GLP-1 agonists act are not yet well understood, however in addition to reducing consumption (of food or drugs), they also may reduce cravings.
Animal studies show GLP-1 agonists reduce craving for cocaine and opioids.
This may involve a key are of the brain reward circuit, the ventral striatum, with experimenters showing if they directly administer GLP-1 agonists into this region, rats show reduced “craving” for oxycodone or cocaine, possibly through reducing drug-induced dopamine release.
Using human brain imaging, experimenters can elicit craving by showing images (cues) associated with alcohol. The GLP-1 agonist exenatide reduced brain activity in response to an alcohol cue. Researchers saw reduced brain activity in the ventral striatum and septal areas of the brain, which connect to regions that regulate emotion, like the amygdala.
In studies in humans, it remains unclear whether GLP-1 agonists act directly to reduce cravings for alcohol or other drugs. This needs to be directly assessed in future research, alongside any reductions in use.
Are these drugs safe to use for addiction?
Overall, GLP-1 agonists have been shown to be relatively safe in healthy adults, and in people with diabetes or obesity. However side effects do include nausea, digestive troubles and headaches.
And while some people are OK with losing weight as a side effect, others aren’t. If someone is already underweight, for example, this drug might not be suitable for them.
In addition, very few studies have been conducted in people with addictive disorders. Yet some side effects may be more of an issue in people with addiction. Recent research, for instance, points to a rare risk of pancreatitis associated with GLP-1 agonists, and people with alcohol use problems already have a higher risk of this disorder.
Other drugs treatments are currently available
Although emerging research on GLP-1 agonists for addiction is an exciting development, much more research needs to be done to know the risks and benefits of these GLP-1 agonists for people living with addiction.
In the meantime, existing effective medications for addiction remain under-prescribed. Only about 3% of Australians with alcohol dependence, for example, are prescribed medication treatments such as like naltrexone, acamprosate or disulfiram. We need to ensure current medication treatments are accessible and health providers know how to prescribe them.
Continued innovation in addiction treatment is also essential. Our team is leading research towards other individualised and effective medications for alcohol dependence, while others are investigating treatments for nicotine addiction and other drug dependence.
Read the other articles in The Conversation’s Ozempic series here.
Shalini Arunogiri, Addiction Psychiatrist, Associate Professor, Monash University; Leigh Walker, , Florey Institute of Neuroscience and Mental Health, and Roberta Anversa, , The University of Melbourne
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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The Real Reason Most Women Don’t Lose Belly Fat
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Notwithstanding the title, this does also go for men too, by the way—while hormones count, they count differently. People with an estrogen-based metabolism (so usually: women) will usually have more body fat, which can make it harder to get visible muscletone, for those who want that. But people with a testosterone-based metabolism (so usually: men) will have different fat storage patterns, and belly-fat is more testosterone-directed than estrogen-directed (estrogen will tend to put it more to the thighs, butt, back, breasts, etc).
So the advice here is applicable to all…
Challenges and methods
The biggest barrier to success: many people give up when results are not immediate, especially if our body has been a certain way without change for a long time.
- “Oh, I guess it’s just genetics”
- “Oh, I guess it’s just age”
- “Oh, I guess it’s just because of [chronic condition]”
…and such things can be true! And yet, in each of the cases, persisting is still usually what the body needs.
So, should we give ourselves some “tough love” and force ourselves through discomfort?
Yes and no, Lefkowith says. It is important to be able to push through some discomfort, but it’s also important that whatever we’re doing should be sustainable—which means we do need to push, while also allowing ourselves adequate recovery time, and not taking unnecessary risks.
In particular, she advises to:
- remember that at least half the work is in the kitchen not the gym, and to focus more on adding protein than reducing calories
- enjoy a regular but varied core exercise routine
- stimulate blood flow to stubborn areas, which can aid in fat mobilization
- focus on getting nutrient-dense foods
- prioritize recovery and strategic rest
For more details on these things and more, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like to read:
Visceral Belly Fat: What It Is & How To Lose It
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Put Your Feet Up! (Against A Wall, For 20 Minutes)
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Feel free to browse our articles while you do
Here are 10 good reasons to give it a try; there are another 10 in the short (3:18) video:
- Improves blood circulation
- Improves blood pressure
- Relaxes the body as a whole
- Alleviates lower back tension
- Eases headaches and migraines
- Reduces knee pain
- Relieves swelling in feet and ankles
- Improves lymphatic flow
- Stretches the hamstrings (and hip flexors, if you do it wide)
- Helps quiet the mind
As for the rest…
Click Here If The Embedded Video Doesn’t Load Automatically
PS: about that circulation… As a general rule of thumb, anything that slightly confuses the heart (anatomically, not romantically) will tend to have a beneficial effect, in moderation. This goes for being upside-down (as is partly the case here), and also for high-intensity interval training (HIIT):
How To Do HIIT (Without Wrecking Your Body)
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There are ‘forever chemicals’ in our drinking water. Should standards change to protect our health?
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Today’s news coverage reports potentially unsafe levels of “forever chemicals” detected in drinking water supplies around Australia. These include human-made chemicals: perfluorooctane sulfonate (known as PFOS) and perflurooctanic acid (PFOA). They are classed under the broader category of per- and polyfluoroalkyl substances or PFAS chemicals.
The contaminants found in our drinking water are the same ones United States authorities warn can cause cancer over a long period of time, with reports warning there is “no safe level of exposure”.
In April, the US Environmental Protection Agency (USEPA) sent shock waves through the water industry around the world when it announced stricter advice on safe levels of PFOS/PFOA in drinking water. This reduced limits considered safe in supplies to zero and gave the water industry five years to meet legally enforceable limits of 4 parts per trillion.
So, should the same limits be enforced here in Australia? And how worried should we be that the drinking in many parts of Australia would fail the new US standards?
What are the health risks?
Medical knowledge about the human health effects of PFOS/PFOA is still emerging. An important factor is the bioaccumulation of these chemicals in different organs in the body over time.
Increased exposure of people to these chemicals has been associated with several adverse health effects. These include higher cholesterol, lower birth weights, modified immune responses, kidney and testicular cancer.
It has been very difficult to accurately track and measure effects of different levels of PFAS exposure on people. People may be exposed to PFAS chemicals in their everyday life through waterproofing of clothes, non-stick cookware coatings or through food and drinking water. PFAS can also be in pesticides, paints and cosmetics.
The International Agency for Research on Cancer (on behalf of the World Health Organization) regards PFOA as being carcinogenic to humans and PFOS as possibly carcinogenic to humans.
Is our drinking water safe? What about long-term risks? Volodymyr TVERDOKHLIB/Shutterstock Our guidelines
Australian drinking water supplies are assessed against national water quality standards. These Australian Drinking Water Guidelines are continuously reviewed by industry and health experts that scan the international literature and update them accordingly.
All city and town water supplies across Australia are subject to a wide range of physical and chemical water tests. The results are compared to Australian water guidelines.
Some tests relate to human health considerations, such as levels of lead or bacteria. Others relate to “aesthetic” considerations, such as the appearance or taste of water. Most water authorities across Australia make water quality information and compliance with Australian guidelines freely available.
What about Australian PFOS and PFOA standards?
These chemicals can enter our drinking water system from many potential sources, such as via their use in fire-fighting foams or pesticides.
According to the Australian Drinking Water Guidelines, PFOS should not exceed 0.07 micrograms per litre in drinking water. And PFOA should not exceed 0.56 micrograms per litre. One microgram is equivalent to one part per billion.
The concentration of these chemicals in water is incredibly small. And much of the advice on their concentration is provided in different units. Sometimes in micrograms or nannograms. The USEPA uses parts per trillion.
In parts per trillion (ppt) the Australian Guidelines for PFOS is 70 ppt and PFOA is 560 ppt. The USEPA’s new maximum contaminant levels (enforceable levels) are 4 ppt for both PFOS and also PFOA. Previous news reports have pointed out Australian guidelines for these chemicals in drinking water are up to 140 times higher than the USEPA permits.
Yikes! That seems like a lot
Today’s news report cites PFOS and PFOA water tests done at many different water supplies across Australia. Some water samples did not detect either chemicals. But most did, with the highest PFOS concentration 15.1–15.6 parts per trillion from Glenunga, South Australia. The highest PFOA concentration was reported from a small water supply in western Sydney, where it was detected at 5.17–9.66 parts per trillion.
Australia and the US are not alone. This is an enormous global problem.
One of the obvious challenges for the Australian water industry is that current water treatment processes may not be effective at removing PFOS or PFOA. The Australian Drinking Water Guidelines provide this advice:
Standard water treatment technologies including coagulation followed by physical separation, aeration, chemical oxidation, UV irradiation, and disinfection have little or no effect on PFOS or PFOA concentrations.
Filtering with activated carbon and reverse osmosis may remove many PFAS chemicals. But no treatment systems appear to be completely effective at their removal.
Removing these contaminants might be particularly difficult for small regional water supplies already struggling to maintain their water infrastructure. The NSW Auditor General criticised the planning for, and funding of, town water infrastructure in regional NSW back in 2020.
Where to from here?
The Australian water industry likely has little choice but to follow the US lead and address PFOS/PFAS contamination in drinking water. Along with lower thresholds, the US committed US$1 billion to water infrastructure to improve detection and water treatment. They will also now require:
Public water systems must monitor for these PFAS and have three years to complete initial monitoring (by 2027) […]
As today’s report notes, it is very difficult to find any recent data on PFOS and PFOA in Australian drinking water supplies. Australian regulators should also require ongoing and widespread monitoring of our major city and regional water supplies for these “forever chemicals”.
The bottom line for drinking tap water is to keep watching this space. Buying bottled water might not be effective (2021 US research detected PFAS in 39 out of 100 bottled waters). The USEPA suggests people can reduce PFAS exposure with measures including avoiding fish from contaminated waters and considering home filtration systems.
Correction: this article previously listed the maximum Australian Drinking Water Guidelines PFOA level as 0.056 micrograms per litre. The figure has been updated to show the correct level of 0.56 micrograms per litre.
Ian A. Wright, Associate Professor in Environmental Science, Western Sydney University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Coach’s Plan – by Mike Kavanagh
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A sports coach’s job is to prepare a plan, give it to the player(s), and hold them accountable to it. Change the strategy if needs be, call the shots. The job of the player(s) is then to follow those instructions.
If you have trouble keeping yourself accountable, Kavanagh argues that it can be good to separate how you approach things.
Not just “coach yourself”, but put yourself entirely in the coach’s shoes, as though you were a separate person, then switch back, and follow those instructions, trusting in your coach’s guidance.
The book also provides illustrative examples and guides the reader through some potential pitfalls—for example, what happens when morning you doesn’t want to do the things that evening you decided would be best?
The absolute backbone of this method is that it takes away the paralysing self-doubt that can occur when we second-guess ourselves mid-task.
In short, this book will fire up your enthusiasm and give you a reliable fall-back for when your motivation’s flagging.
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Hardwiring Happiness – by Dr. Rick Hanson
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Publishers are very excitable about “the new science of…”, and it’s almost never actually a new science of. But what about in this case?
No, it isn’t. It’s the very well established science of! And that’s a good thing, because it means this book is able to draw on quite a lot of research and established understanding of how neuroplasticity works, to leverage that and provide useful guidance.
A particular strength of this book is that while it polarizes the idea that some people have “happy amygdalae” and some people have “sad amygdalae”, it acknowledges that it’s not just a fated disposition and is rather the result of the lives people have led… And then provides advice on upgrading from sad to happy, based on the assumption that the reader is quite possibly coming from a non-ideal starting point.
The bookdoes an excellent job of straddling neuroscience and psychology, which sounds like not much of a straddle (the two are surely very connected, after all, right?) but this does mean that we’re hearing about the chemical structure of DNA inside the nuclei of the neurons of the insula, not long after reading an extended gardening metaphor about growth, choices, and vulnerabilities.
Bottom line: if you’d like a guide to changing your brain for the better (happier) that’s not just “ask yourself: what if it goes well?” and similar CBTisms, then this is a fine book for you.
Click here to check out Hardwiring Happiness, and indeed hardwire happiness!
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Gut-Healthy Labneh Orecchiette
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Labneh (a sort of yogurt-cheese made from strained yogurt) is a great probiotic, and there’s plenty of resistant starch in this dish too, from how we cook, cool, and reheat the pasta. Add to this the lycopene from the tomatoes, the ergothioneine from the mushrooms, and the healthful properties of the garlic, black pepper, and red chili, and we have a very healthy dish!
You will need
- 10 oz labneh (if you can’t buy it locally, you can make your own by straining Greek yogurt through a muslin cloth, suspended over a bowl to catch the water that drips out, overnight—and yes, plant-based is also fine if you are vegan, and the gut benefits are similar because unlike vegan cheese, vegan yogurt is still fermented)
- 6 oz wholegrain orecchiette (or other pasta, but this shape works well for this sauce)
- ¼ bulb garlic, grated
- Juice of ½ lemon
- Large handful chopped parsley
- Large handful chopped dill
- 9 oz cherry tomatoes, halved
- 9 oz mushrooms (your choice what kind), sliced (unless you went for shiitake or similar, which don’t need it due to already being very thin)
- 2 tsp black pepper, coarse ground
- 1 tsp red chili flakes
- ¼ tsp MSG or ½ tsp low-sodium salt
- Extra virgin olive oil
Method
(we suggest you read everything at least once before doing anything)
1) Cook the pasta as you normally would. Drain, and rinse with cold water. Set aside.
2) Combine the labneh with the garlic, black pepper, dill, parsley, and lemon juice, in a large bowl. Set aside.
3) Heat a little olive oil in a skillet; add the chili flakes, followed by the mushrooms. Cook until soft and browned, then add the tomatoes and fry for a further 1 minute—we want the tomatoes to be blistered, but not broken down. Stir in the MSG/salt, and take off the heat.
4) Refresh the pasta by passing a kettle of boiling water through it in a colander, then add the hot pasta to the bowl of labneh sauce, stirring to coat thoroughly.
5) Serve, spooning the mushrooms and tomatoes over the labneh pasta.
Enjoy!
Want to learn more?
For those interested in some of the science of what we have going on today:
- Making Friends With Your Gut (You Can Thank Us Later)
- Lycopene’s Benefits For The Gut, Heart, Brain, & More
- “The Longevity Vitamin” (That’s Not A Vitamin)
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